LG G8000 User Manual page 171

You can save the phone number and check the date, time for a call.
Or, you can call back to the other party.
The Call divert service allows you to divert incoming voice calls, fax
calls, and data calls to another number.
For details, contact your service provider.
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Press [Menu] in standby mode.
and menu.
Diverts voice calls unconditionally.
Diverts voice calls when the phone is in use.
Diverts voice calls which you do not answer.
Diverts voice calls when the phone is switched off or out of coverage.
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